Racking for solar thermal collector



FIG. 1 is a front perspective view of a racking for solar thermal collector showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is an enlarged fragmental view thereof, as indicated by circle 7 in FIG. 1;

FIG. 8 is an enlarged fragmental view thereof, as indicated by circle 8 in FIG. 4;

FIG. 9 is an enlarged fragmental view thereof, as indicated by circle 9 in FIG. 4; and,

FIG. 10 is a perspective view thereof, shown in an environmental use.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a racking for solar thermal collector, as shown and described. 